The Verge published a video demonstrating how desktop mode and Office 2013 - a desktop application - work on Windows RT, the ARM version of Windows 8. The video showed a desktop mode that clearly didn't work well for touch, and even Office 2013, which has a rudimentary touch mode built-in, didn't work properly either. It looked and felt clunky, often didn't respond properly, and even showed touch lag.

A big problem with dumping money into the Linux desktop is that your competitors get the fruits of your labor thanks to the GPL. Red Hat has managed to get around this by selling a brand name and pricey support to enterprise but that same model doesn't work on the desktop (and Linux fans please note that the Red Hat CEO acknowledged this).

Nope, company I work for we use Linux as our base. We do contribute back to the community but we also maintain some proprietary code. There is a fortune to be made in maintenance, support contracts and consulting for the Enterprise. That's were the real $$$ are generated.